Ovaries
Ovary
OVARY
gonadotrophins, glucocorticoidsand growth hormones
Testosterone
The endocrine system controls the functioning of the reproductive system. The responsible endocrine glands are known as the gonads. The gonads secrete sex hormones, which are responsible for sexual development, and the associated growth spurts in the body. They are also responsible for the development of secondary sexual characteristics. Other hormones also affect the functioning of the reproductive system. These include the gonadotropin releaseing hormones from the hypothalamus, the pituitary hormones like prolactin, insulin from the pancreas, and thyroxine from the thyroid.
Testosterone
estrogen= female testosterome=male
gonadotrophins, glucocorticoidsand growth hormones
Gametes
Freemartinism is when a heifer has male sex characteristics but has underdeveloped female sex organs. It is caused by sharing a placenta with a twin bull calf. The male sex hormones that is emitted by the male fetus as he develops in the womb inhibits the female's sex hormones, and consequently prohibits her from developing normal female reproductive organs. She retains the testosterone and develops bull-like characteristics after birth and as she gets older. Freemartins are sterile, so they're better off being raised for the freezer.
Freemartinism is when a heifer has male sex characteristics but has underdeveloped female sex organs. It is caused by sharing a placenta with a twin bull calf. The male sex hormones that is emitted by the male fetus as he develops in the womb inhibits the female's sex hormones, and consequently prohibits her from developing normal female reproductive organs. She retains the testosterone and develops bull-like characteristics after birth and as she gets older. Freemartins are sterile, so they're better off being raised for the freezer.
Ovaries release an egg each month which causes a woman to either menstruate or become pregnant. They also produce the hormones estrogen and progesteron, which make up the secondary sex characteristics of a female at puberty.